#include "oled_dev.h"
#include "oledfont.h"
#include "asm/iic_soft.h"
#include "gpio.h"
static u8 iic_hdl = 0;
#define IIC_Start() soft_iic_start(iic_hdl)
#define Write_IIC_Byte(byte) soft_iic_tx_byte(iic_hdl, byte)
#define IIC_Stop() soft_iic_stop(iic_hdl)
// #define Read_IIC_Byte(ack) soft_iic_rx_byte(iic_hdl, ack)

/**********************************************
// IIC Write Command
**********************************************/
void Write_IIC_Command(unsigned char IIC_Command)
{
    IIC_Start();
    Write_IIC_Byte(0x78); // Slave address,SA0=0
    // IIC_Wait_Ack();
    Write_IIC_Byte(0x00); // write command
    // IIC_Wait_Ack();
    Write_IIC_Byte(IIC_Command);
    // IIC_Wait_Ack();
    IIC_Stop();
}
/**********************************************
// IIC Write Data
**********************************************/
void Write_IIC_Data(unsigned char IIC_Data)
{
    IIC_Start();
    Write_IIC_Byte(0x78); // D/C#=0; R/W#=0
    // IIC_Wait_Ack();
    Write_IIC_Byte(0x40); // write data
    // IIC_Wait_Ack();
    Write_IIC_Byte(IIC_Data);
    // IIC_Wait_Ack();
    IIC_Stop();
}
void OLED_WR_Byte(unsigned dat, unsigned cmd)
{
    if (cmd)
    {

        Write_IIC_Data(dat);
    }
    else
    {
        Write_IIC_Command(dat);
    }
}

/********************************************
// fill_Picture
********************************************/
void fill_picture(unsigned char fill_Data)
{
    unsigned char m, n;
    for (m = 0; m < 8; m++)
    {
        OLED_WR_Byte(0xb0 + m, 0); // page0-page1
        OLED_WR_Byte(0x00, 0);     // low column start address
        OLED_WR_Byte(0x10, 0);     // high column start address
        for (n = 0; n < 128; n++)
        {
            OLED_WR_Byte(fill_Data, 1);
        }
    }
}

// 坐标设置
void OLED_Set_Pos(unsigned char x, unsigned char y)
{
    OLED_WR_Byte(0xb0 + y, OLED_CMD);
    OLED_WR_Byte(((x & 0xf0) >> 4) | 0x10, OLED_CMD);
    OLED_WR_Byte((x & 0x0f), OLED_CMD);
}

// 开启OLED显示
void OLED_Display_On(void)
{
    OLED_WR_Byte(0X8D, OLED_CMD); // SET DCDC命令
    OLED_WR_Byte(0X14, OLED_CMD); // DCDC ON
    OLED_WR_Byte(0XAF, OLED_CMD); // DISPLAY ON
}

// 关闭OLED显示
void OLED_Display_Off(void)
{
    OLED_WR_Byte(0X8D, OLED_CMD); // SET DCDC命令
    OLED_WR_Byte(0X10, OLED_CMD); // DCDC OFF
    OLED_WR_Byte(0XAE, OLED_CMD); // DISPLAY OFF
}

// 清屏函数,清完屏,整个屏幕是黑色的!和没点亮一样!!!
void OLED_Clear(void)
{
    u8 i, n;
    for (i = 0; i < 8; i++)
    {
        OLED_WR_Byte(0xb0 + i, OLED_CMD); // 设置页地址（0~7）
        OLED_WR_Byte(0x00, OLED_CMD);     // 设置显示位置—列低地址
        OLED_WR_Byte(0x10, OLED_CMD);     // 设置显示位置—列高地址
        for (n = 0; n < 128; n++)
            OLED_WR_Byte(0, OLED_DATA);
    } // 更新显示
}
void OLED_On(void)
{
    u8 i, n;
    for (i = 0; i < 8; i++)
    {
        OLED_WR_Byte(0xb0 + i, OLED_CMD); // 设置页地址（0~7）
        OLED_WR_Byte(0x00, OLED_CMD);     // 设置显示位置—列低地址
        OLED_WR_Byte(0x10, OLED_CMD);     // 设置显示位置—列高地址
        for (n = 0; n < 128; n++)
            OLED_WR_Byte(1, OLED_DATA);
    } // 更新显示
}

// 在指定位置显示一个字符,包括部分字符
// x:0~127
// y:0~63
// mode:0,反白显示;1,正常显示
// size:选择字体 16/12
void OLED_ShowChar(u8 x, u8 y, u8 chr[], u8 Char_Size)
{
	unsigned char c = 0, i = 0;
	c = chr - ' '; // 得到偏移后的值
	if (x > Max_Column - 1)
	{
		x = 0;
		y = y + 2;
	}
	if (Char_Size == 16)
	{
		OLED_Set_Pos(x, y);
		for (i = 0; i < 8; i++)
			OLED_WR_Byte(F8X16[c * 16 + i], OLED_DATA);
		OLED_Set_Pos(x, y + 1);
		for (i = 0; i < 8; i++)
			OLED_WR_Byte(F8X16[c * 16 + i + 8], OLED_DATA);
	}
	else
	{
		OLED_Set_Pos(x, y);
		for (i = 0; i < 6; i++)
			OLED_WR_Byte(F6x8[c][i], OLED_DATA);
	}
}
// m^n函数
u32 oled_pow(u8 m, u8 n)
{
    u32 result = 1;
    while (n--)
        result *= m;
    return result;
}
// 获取数字长度
int get_num_length(int num)
{
    int length = 0;
    while (num != 0)
    {
        length++;
        num /= 10;
    }
    return length;
}

// 显示2个数字
// x,y :起点坐标
// len :数字的位数
// size:字体大小
// mode:模式	0,填充模式;1,叠加模式
// num:数值(0~4294967295);
void OLED_ShowNum(u8 x, u8 y, u32 num, u8 len, u8 size2)
{
    u8 t, temp;
    u8 enshow = 0;
    for (t = 0; t < len; t++)
    {
        temp = (num / oled_pow(10, len - t - 1)) % 10;
        if (enshow == 0 && t < (len - 1))
        {
            if (temp == 0)
            {
                OLED_ShowChar(x + (size2 / 2) * t, y, ' ', size2);
                continue;
            }
            else
                enshow = 1;
        }
        OLED_ShowChar(x + (size2 / 2) * t, y, temp + '0', size2);
    }
}

void OLED_ShowNumber(u8 x, u8 y, u32 num)
{
    char buffer[12]; // 用于存储转换后的数字字符串
    int i = 0;
    // 将数字转换为字符串
    while (num > 0)
    {
        buffer[i++] = num % 10 + '0'; // 将数字的每一位转换为字符
        num /= 10;
    }
    // 在 OLED 上显示数字字符串，从末尾开始
    for (int j = i - 1; j >= 0; j--)
    {
        OLED_ShowChar(x + j * 6, y, buffer[j], 16); // 根据需要调整字体大小和字符宽度
    }
}

// 显示一个字符号串
void OLED_ShowString(u8 x, u8 y, u8 *chr, u8 Char_Size)
{
    unsigned char j = 0;
    while (chr[j] != '\0')
    {
        OLED_ShowChar(x, y, chr[j], Char_Size);
        x += 8;
        if (x > 120)
        {
            x = 0;
            y += 2;
        }
        j++;
    }
}
// 显示汉字
void OLED_ShowCHinese(u8 x, u8 y, u8 no)
{
    u8 t, adder = 0;
    OLED_Set_Pos(x, y);
    for (t = 0; t < 16; t++)
    {
        OLED_WR_Byte(Hzk[2 * no][t], OLED_DATA);
        adder += 1;
    }
    OLED_Set_Pos(x, y + 1);
    for (t = 0; t < 16; t++)
    {
        OLED_WR_Byte(Hzk[2 * no + 1][t], OLED_DATA);
        adder += 1;
    }
}
/***********功能描述：显示显示BMP图片128×64起始点坐标(x,y),x的范围0～127，y为页的范围0～7*****************/
void OLED_DrawBMP(unsigned char x0, unsigned char y0, unsigned char x1, unsigned char y1, unsigned char BMP[])
{
    unsigned int j = 0;
    unsigned char x, y;

    if (y1 % 8 == 0)
        y = y1 / 8;
    else
        y = y1 / 8 + 1;
    for (y = y0; y < y1; y++)
    {
        OLED_Set_Pos(x0, y);
        for (x = x0; x < x1; x++)
        {
            OLED_WR_Byte(BMP[j++], OLED_DATA);
        }
    }
}

// 初始化SSD1306
void OLED_Init(void)
{
    delay(1000);
    OLED_WR_Byte(0xAE, OLED_CMD); // 关闭显示

    OLED_WR_Byte(0x40, OLED_CMD); //---set low column address
    OLED_WR_Byte(0xB0, OLED_CMD); //---set high column address

    OLED_WR_Byte(0xC8, OLED_CMD); //-not offset

    OLED_WR_Byte(0x81, OLED_CMD); // 设置对比度
    OLED_WR_Byte(0xff, OLED_CMD);

    OLED_WR_Byte(0xa1, OLED_CMD); // 段重定向设置

    OLED_WR_Byte(0xa6, OLED_CMD); //

    OLED_WR_Byte(0xa8, OLED_CMD); // 设置驱动路数
    OLED_WR_Byte(0x1f, OLED_CMD);

    OLED_WR_Byte(0xd3, OLED_CMD);
    OLED_WR_Byte(0x00, OLED_CMD);

    OLED_WR_Byte(0xd5, OLED_CMD);
    OLED_WR_Byte(0xf0, OLED_CMD);

    OLED_WR_Byte(0xd9, OLED_CMD);
    OLED_WR_Byte(0x22, OLED_CMD);

    OLED_WR_Byte(0xda, OLED_CMD);
    OLED_WR_Byte(0x12, OLED_CMD); // 使用默认值	0.96寸分辨率是128*64 ,设置12h；0.91寸分辨率是128*32 ,设置02h

    OLED_WR_Byte(0xdb, OLED_CMD);
    OLED_WR_Byte(0x49, OLED_CMD);

    OLED_WR_Byte(0x8d, OLED_CMD);
    OLED_WR_Byte(0x14, OLED_CMD);

    OLED_WR_Byte(0xaf, OLED_CMD);
    OLED_Clear();
}
